A new universal symbol, a red diamond shape with an exclamation point, will be required for the front of all medical and retail marijuana products and packaging.
Those products must also include this statement: “Contains Marijuana. Keep out of the reach of children.”
The new rules will enhance public health and safety by "providing yet another tool for parents, school officials, law enforcement, even health professionals," said Jim Burack, director of the marijuana enforcement division at the Colorado Department of Revenue.
"They can help keep marijuana away from our kids," Burack said.
A study in September by JAMA Pediatrics found rates of unintentional marijuana exposure in young children spiked by 150 percent since legal recreational marijuana sales began in 2014.
Kids who consume pot cookies or candies can suffer from vomiting, mood changes, sleepiness and balance problems.